Microstructure - Fracture toughness relationship in a sub-zero treated 0.9C-7.8Cr sub-ledeburitic tool steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F24%3APU154901" target="_blank" >RIV/00216305:26210/24:PU154901 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/24:00598972
Result on the web
<a href="https://doi.org/10.1016/j.tafmec.2024.104670" target="_blank" >https://doi.org/10.1016/j.tafmec.2024.104670</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.tafmec.2024.104670" target="_blank" >10.1016/j.tafmec.2024.104670</a>
Alternative languages
Result language
angličtina
Original language name
Microstructure - Fracture toughness relationship in a sub-zero treated 0.9C-7.8Cr sub-ledeburitic tool steel
Original language description
The Sleipner steel (0.9C-7.8Cr sub-ledeburitic tool steel) is a widely utilized tool steel currently being adopted to produce tools used in fine blanking, shearing, forming, coining, deep drawing, and others. In these branches, tailoring the final mechanical properties, such as hardness and toughness, to specific application is highly appreciated. The Sleipner steel was subjected to sub-zero treatments (at -140 degrees C for 17 h and 36 h) in the current work. The resulting microstructures, hardness variations, and changes in fracture toughness were analyzed and discussed. It was observed that sub-zero treatments reduced the retained austenite amounts by 14-15 % and slightly refined the martensite. However, the impact of this treatment on carbide count was marginal. The hardness of the sub-zero treated steel increased when tempered at temperatures up to 400 degrees C, but it decreased after tempering at 520 degrees C compared to cryogenically treated specimens. Sub-zero treatment reduced the fracture toughness in the steel tempered up to a temperature of 400 degrees C, but an increment in this property was found after 520 degrees C tempering. Nevertheless, the obtained results indicate that it is impossible to simultaneously enhance both the hardness and fracture toughness of this particular steel grade. Therefore, it is necessary to carefully choose the principal goal of the treatment (either hardness or toughness) even before subjecting the tools to the heat/sub-zero treatment.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20500 - Materials engineering
Result continuities
Project
<a href="/en/project/TN02000010" target="_blank" >TN02000010: National Competence Centre of Mechatronics and Smart Technologies for Mechanical Engineering</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Theoretical and Applied Fracture Mechanics
ISSN
0167-8442
e-ISSN
1872-7638
Volume of the periodical
134
Issue of the periodical within the volume
September
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
17
Pages from-to
„“-„“
UT code for WoS article
001317379800001
EID of the result in the Scopus database
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